package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.exception.SetmealEnableFailedException;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetmealService;

import com.sky.vo.DishItemVO;
import com.sky.vo.SetmealVO;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Service
public class SetmealServiceImpl implements SetmealService {
    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private SetmealDishMapper setmealDishMapper;
    @Autowired
    private DishMapper dishMapper;
@Transactional
    @Override
    public void saveWithDish(SetmealDTO setmealDTO) {
        Setmeal setmeal =new Setmeal();
    BeanUtils.copyProperties(setmealDTO,setmeal);
         setmealMapper.insert(setmeal);
    Long setmealId = setmeal.getId();
    List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
    for (SetmealDish setmealDish : setmealDishes) {
        setmealDish.setSetmealId(setmealId);
    }
    setmealDishMapper.insertBatch(setmealDishes);

}

    @Override
    public PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {
        PageHelper.startPage(setmealPageQueryDTO.getPage(),setmealPageQueryDTO.getPageSize());
        Page<SetmealVO> page=setmealMapper.PageQuery(setmealPageQueryDTO);
        return new PageResult(page.getTotal(),page.getResult());
    }
@Transactional
    @Override
    public void deleteBatch(List<Long> ids) {
    for (Long id : ids) {
        Setmeal setmeal=setmealMapper.getById(id);
        if(setmeal.getStatus()== StatusConstant.ENABLE){
            throw new DeletionNotAllowedException(MessageConstant.SETMEAL_ON_SALE);
        }
    }
    for (Long setmealId : ids) {
       setmealMapper.deleteById(setmealId) ;
       setmealDishMapper.deleteBySetmealId(setmealId);
    }

    }

    @Override
    public SetmealVO getByIdWithDish(Long id) {
       Setmeal setmeal= setmealMapper.getById(id);
       List<SetmealDish> setmealDishes=setmealDishMapper.getBySetmealId(id);
       SetmealVO setmealVO=new SetmealVO();
       BeanUtils.copyProperties(setmeal,setmealVO);
       setmealVO.setSetmealDishes(setmealDishes);
       return setmealVO;
    }

    @Override
    public void update(SetmealDTO setmealDTO) {
    Setmeal setmeal=new Setmeal();
    BeanUtils.copyProperties(setmealDTO,setmeal);
        setmealMapper.update(setmeal);
        Long setmealId = setmealDTO.getId();
        setmealDishMapper.deleteBySetmealId(setmealId);
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        setmealDishes.forEach(setmealDish -> {
            setmealDish.setSetmealId(setmealId);
        });
        setmealDishMapper.insertBatch(setmealDishes);
    }

    @Override
    public void satrtOrStop(Integer status, Long id) {
        if(status == StatusConstant.ENABLE){

            List<Dish> dishList = dishMapper.getBySetmealId(id);
            if(dishList != null && dishList.size() > 0){
                dishList.forEach(dish -> {
                    if(StatusConstant.DISABLE == dish.getStatus()){
                        throw new SetmealEnableFailedException(MessageConstant.SETMEAL_ENABLE_FAILED);
                    }
                });
            }
        }

        Setmeal setmeal = Setmeal.builder()
                .id(id)
                .status(status)
                .build();
        setmealMapper.update(setmeal);
    } /**
     * 条件查询
     * @param setmeal
     * @return
     */
    public List<Setmeal> list(Setmeal setmeal) {
        List<Setmeal> list = setmealMapper.list(setmeal);
        return list;
    }
    /**
     * 根据id查询菜品选项
     * @param id
     * @return
     */
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }

}
